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单选题
A developer has created a special servlet that is responsible for generating XML content that is sent to adata warehousing subsystem. This subsystem uses HTTP to request these large data files， which are compressed by the servlet to save internal network bandwidth. The developer has received a request frommanagement to create several more of these data warehousing servlets. The developer is about to copyand paste the compression code into each new servlet. Which design pattern can consolidate thiscompression code to be used by all of the data warehousing servlets？（）
A
Facade
B
View Helper
C
Transfer Object
D
Intercepting Filter
E
Composite Facade
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更多 “单选题A developer has created a special servlet that is responsible for generating XML content that is sent to adata warehousing subsystem. This subsystem uses HTTP to request these large data files， which are compressed by the servlet to save internal network bandwidth. The developer has received a request frommanagement to create several more of these data warehousing servlets. The developer is about to copyand paste the compression code into each new servlet. Which design pattern can consolidate thiscompression code to be used by all of the data warehousing servlets？（）A FacadeB View HelperC Transfer ObjectD Intercepting FilterE Composite Facade” 相关考题
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A developer has created a web application that includes a servlet for each use case in the application.These servlets have become rather difficult to maintain because the request processing methods havebecome very large. There is also common processing code in many servlets because these use cases arevery similar. Which two design patterns can be used together to refactor and simplify this web application？（）A、ProxyB、View HelperC、Front ControllerD、Session FacadeE、Business DelegateF、Model-View-Controller
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Which two classes or interfaces provide a getSession method？（）A、javax.servlet.http.HttpServletRequestB、javax.servlet.http.HttpSessionContextC、javax.servlet.http.HttpServletResponseD、javax.servlet.http.HttpSessionBindingEventE、javax.servlet.http.HttpSessionAttributeEvent
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A developer has created a special servlet that is responsible for generating XML content that is sent to adata warehousing subsystem. This subsystem uses HTTP to request these large data files， which are compressed by the servlet to save internal network bandwidth. The developer has received a request frommanagement to create several more of these data warehousing servlets. The developer is about to copyand paste the compression code into each new servlet. Which design pattern can consolidate thiscompression code to be used by all of the data warehousing servlets？（）A、FacadeB、View HelperC、Transfer ObjectD、Intercepting FilterE、Composite Facade
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Which interface must a class implement so that instances of the class are notified after any object is added to a session？ （）A、 javax.servlet.http.HttpSessionListenerB、 javax.servlet.http.HttpSessionValueListenerC、 javax.servlet.http.HttpSessionBindingListenerD、 javax.servlet.http.HttpSessionAttributeListener
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Servlet A receives a request that it forwards to servlet B within another web application in the same web container. Servlet A needs to share data with servlet B and that data must not be visible to other servlets in A’s web application. In which object can the data that A shares with B be stored？（）A、 HttpSessionB、 ServletConfigC、 ServletContextD、 HttpServletRequestE、 HttpServletResponse
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A Company.com developer has created a web application that includes a servlet for each use case in the application. These servlets have become rather difficult to maintain because the request processing methods have become very large. There is also common processing code in many servlets because these use cases are very similar. Which two design patterns can be used together to refactor and simplify this web application？ （）A、 ProxyB、 View HelperC、 Front ControllerD、 Session FaçadeE、 Business DelegateF、 Model-View-Controller
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考题
单选题Servlet A forwarded a request to servlet B using the forward method of RequestDispatcher. What attributein B’s request object contains the URI of the original request received by servlet A？（）A
REQUEST_URIB
javax.servlet.forward.request_uriC
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考题
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javax.servlet.http.HttpSessionBindingListenerD
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考题
单选题Which interface must a class implement to be informed of a session creation event？（）A
javax.servlet.http.HttpSessionListenerB
javax.servlet.http.HttpSessionBindingListenerC
javax.servlet.http.HttpSessionCreationListenerD
javax.servlet.http.HttpSessionActivationListener
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多选题Which two classes or interfaces provide a getSession method？（）Ajavax.servlet.http.HttpServletRequestBjavax.servlet.http.HttpSessionContextCjavax.servlet.http.HttpsServletResponseDjavax.servlet.http.HttpSessionBindingEventEjavax.servlet.http.HttpSessionAttributeEvent
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单选题Servlet A receives a request that it forwards to servlet B within another web application in the same webcontainer. Servlet A needs to share data with servlet B and that data must not be visible to other servlets inA’s web application. In which object can the data that A shares with B be stored？（）A
HttpSessionB
ServletConfigC
ServletContextD
HttpServletRequestE
HttpServletResponse
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多选题Your web application uses a simple architecture in which servlets handle requests and then forward to aJSP using a request dispatcher. You need to pass information calculated in the servlet to the JSP for view generation.This information must NOT be accessible to any other servlet，JSP or session in the webapp. Which two techniques can you use to accomplish this goal？（）AAdd attributes to the session object.BAdd attributes on the request object.CAdd parameters to the request object.DUse the pageContext object to add request attributes.EAdd parameters to the JSP’s URL when generating the request dispatcher.
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单选题A customer is experiencing a performance bottleneck in a disk subsystem. The server is performing sequential I/O with a small number of users requesting large files. Which of the following would most likely resolve the bottleneck？（）A
Increase seek translationB
Increase data transfer rateC
Decrease rotational latencyD
Increase rotational latency
考题
单选题Given an Http Session session. A Servlet Request request. And a Servlet Context context. Which retrieves a URL to /WEB INF/ my config.xml within a web application？（）A
session.get Resource （“/WEB-INF/myconfig.xml”）B
request.get Resource （“/WEB-INF/myconfig.xml”）C
context.get Resource （“/WEB-INF/myconfig.xml”）D
get Class （）.get Resource （“/WEB-INF/myconfig.xml”）
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多选题Which two HTTP methods are used to process from data in a servlet？ （）Ado GETBdo PutCdo PostDdo TraceEdo SubmitFdo Process
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单选题Servlet A receives a request that it forwards to servlet B within another web application in the same web container. Servlet A needs to share data with servlet B and that data must not be visible to other servlets in A’s web application. In which object can the data that A shares with B be stored？（）A
HttpSessionB
ServletConfigC
ServletContextD
HttpServletRequestE
HttpServletResponse
考题
单选题Which interface must a session attribute implement if it needs to be notified when a web container persistsa session？（）A
javax.servlet.http.HttpSessionListenerB
javax.servlet.http.HttpSessionBindingListenerC
javax.servlet.http.HttpSessionAttributeListenerD
javax.servlet.http.HttpSessionActivationListener
考题
单选题Which interface must a class implement so that instances of the class are notified after any object is addedto a session？（）A
javax.servlet.http.HttpSessionListenerB
javax.servlet.http.HttpSessionValueListenerC
javax.servlet.http.HttpSessionBindingListenerD
javax.servlet.http.HttpSessionAttributeListener
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